Table 3 Occurrence and patterns of antibiotic resistance molecular markers detected by RT-PCR among Salmonella enterica isolates from poultry tissue (P) and environmental samples (E)
Genetic marker | Environment samples N = 31 | Poultry tissue samples N = 126 | Isolates with only this marker |
|---|---|---|---|
tetA | 25 (81%) | 106 (84%) | 12 (39%, E); 49 (39%, P) |
QnrS | 11 (35%) | 53 (42%) | 0 (E); 1 (0.1%, P) |
mefA | 3 (10%) | 10 (8%) | 0(E); 2 (0.2%, P) |
VIM-1 | 0 | 1 (0.1%) | – |
Both tetAandQnrS | 10 (32%) | 48 (38%) | Â |
Both tetAand mefA | 2 (6%) | 4 (0.3%) | Â |
Both tetAand VIM-1 | 0 | 1 (0.1%) | Â |
Both tetA, QnrS, and mefA | 1 (3%) | 4 (0.3%) | Â |